How a deadly strain of salmonella fine-tunes its infection tactics

Disease-causing microbes have evolved sophisticated strategies for invading the body, flourishing in often hostile environments and evading immune defenses. In a new study, Professor Cheryl Nickerson, her Arizona State University ...

Physicists report optical analog of Kármán vortex street

In a study published in Nature Communications, collaborating physicists from Singapore and the UK have reported an optical analog of the Kármán vortex street (KVS). This optical KVS pulse reveals fascinating parallels between ...

Investigating the porosity of sedimentary rock with neutrons

Whether sedimentary rocks store fossil hydrocarbons or act as impermeable layers to prevent the rise of oil, natural gas or stored carbon dioxide—all depends on their porosity. The size, shape, organization, and connectivity ...

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